【摘 要】
：
从系统上介绍 1种新兴骨干网络技术MPLS的体系结构。包括其基本概念、功能特性、结构组成及其内在关系。在MPLS体系结构中 ,标签是关键的技术手段。所有进入MPLS的包都必须加
【机 构】
：
南京大学计算机科学与技术系,南京大学计算机科学与技术系,南京大学计算机科学与技术系 江苏南京210093南京大学通信技术研究所,江苏南京210093,江苏南京210093,江苏南京210093
论文部分内容阅读
从系统上介绍 1种新兴骨干网络技术MPLS的体系结构。包括其基本概念、功能特性、结构组成及其内在关系。在MPLS体系结构中 ,标签是关键的技术手段。所有进入MPLS的包都必须加上标签 ,所有操作都围绕标签展开。对标签的分析、处理和根据标签内容进行包转发是在标签交换路由器LSR上完成的。LSR综合了传统路由器和交换机的优点 ,是MPLS的基本单元。带有标签的包在LSR间传输 ,所经过的LSR序列组成标签交换路径LSP。LSP建立和控制是MPLS体系结构的重要内容。在建立LSP的过程中 ,MPLS体系结构支持环路检测 ,以避免环路的产生而降低网络性能。MPLS体系结构能够利用LSP建立隧道 ,简化了传输控制 ,降低了设备复杂度 ,提高了网络性能
Introduced from the system 1 kind of emerging backbone network technology MPLS architecture. Including its basic concepts, functional characteristics, structure and its inherent relationship. In the MPLS architecture, tags are the key technical means. All packets that enter MPLS must be tagged, and all operations expand around the tag. Analysis of the label, processing and packet forwarding based on the label content is done on the label switching router LSR. LSR combines the advantages of traditional routers and switches and is the basic unit of MPLS. Packets with labels are transmitted between the LSRs, and the LSRs traversed form a label switched path LSP. LSP establishment and control is an important part of the MPLS architecture. During the establishment of an LSP, the MPLS architecture supports loop detection to prevent loops and reduce network performance. MPLS architecture enables the establishment of tunnels using LSPs, simplifying transmission control, reducing equipment complexity and improving network performance
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